The primary sizing and shredding of scrap metal is a very energy-intensive process, averaging 18 to 35 kilowatt-hours a ton, depending on density. There's no escaping this substantial energy demand, but a few strategies have the potential to reduce electricity costs and consumption and maximize energy efficiency. Whether these strategies are possible or practical for any specific shredding facility will depend on the shredder's location, its utility provider, and a variety of operational challenges.
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